A self aligning actuator with low bearing wear
CA 2245038 A1 · Owner: Hoskin, Catherine · Inventors: Leng, David Yan; Hoskin, Catherine; Adams, Phillip G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A motor and a rotatable single phase electromagnetic actuator that has a self aligning shaft that allows for misalignment of actuator parts that would lead to excessive bearing surface wearing. Additionally the actuator has a rotor, having a first rotor surface; a stator, having a slanted bearing surface opposed the first rotor surface; and a bearing device, mounted on and between the first rotor surface and the slanted bearing surface, positioned and shaped to separate the rotor from the stator and to self align on the slanted bearing surface in a position that substantially evenly distributes bearing loading on the bearing device.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed August 14, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.